The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 1992
Filed:
Jan. 19, 1990
Terrence O'Neill, Carlyle, IL (US);
Timothy O'Neill, Carlyle, IL (US);
Other;
Abstract
An assembly for controlling the lateral stability of a swept-wing aircraft by varying the geometric dihedral of the wing as a function of the wing's lift coefficient, such assembly including a mechanism for producing a signal or other type response representative of the lift coefficient of the wing at any particular point in time during flight including changes in such lift coefficient due to changes in the particular flight condition or aerodynamic characteristics of such wing, and a mechanism responsive to such signal or other response for controlling and activating movement of variable dihedral panels associated with the respective opposite portions of the wing. Movement of the variable dihedral panels changes the geometric dihedral of such wing in direct response to changes in the wing's lift coefficient and this enables one to maintain the overall effective dihedral of the aircraft, and consequently, the rolling moment stability coefficient, relatively constant throughout the entire flight envelope of the aircraft.